1//** Accordion Content script: By Dynamic Drive, at http://www.dynamicdrive.com 2//** Created: Jan 7th, 08'. Last updated: Feb 16th, 2012 to v2.0 3 4//Version 1.9: June 7th, 2010': 5//**1) Ajax content support added, so a given header's content can be dynamically fetched from an external file and on demand. 6//**2) Optimized script performance by caching header and content container references 7 8//Version 2.0: Feb 16th, 2012': 9//** 1) Added option ("scrolltoheader") to scroll to the expanded header in question after it expands (useful if a header contains long content). 10 11 12var ddaccordion = { 13 ajaxloadingmsg: '<img src="loading2.gif" /><br />Loading Content...', //customize HTML to output while Ajax content is being fetched (if applicable) 14 15 headergroup: {}, //object to store corresponding header group based on headerclass value 16 contentgroup: {}, //object to store corresponding content group based on headerclass value 17 18 preloadimages: function ($images) { 19 $images.each(function () { 20 var preloadimage = new Image() 21 preloadimage.src = this.src 22 }) 23 }, 24 25 expandone: function (headerclass, selected, scrolltoheader) { //PUBLIC function to expand a particular header 26 this.toggleone(headerclass, selected, "expand", scrolltoheader) 27 }, 28 29 collapseone: function (headerclass, selected) { //PUBLIC function to collapse a particular header 30 this.toggleone(headerclass, selected, "collapse") 31 }, 32 33 expandall: function (headerclass) { //PUBLIC function to expand all headers based on their shared CSS classname 34 var $headers = this.headergroup[headerclass] 35 this.contentgroup[headerclass].filter(':hidden').each(function () { 36 $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion") 37 }) 38 }, 39 40 collapseall: function (headerclass) { //PUBLIC function to collapse all headers based on their shared CSS classname 41 var $headers = this.headergroup[headerclass] 42 this.contentgroup[headerclass].filter(':visible').each(function () { 43 $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion") 44 }) 45 }, 46 47 toggleone: function (headerclass, selected, optstate, scrolltoheader) { //PUBLIC function to expand/ collapse a particular header 48 var $targetHeader = this.headergroup[headerclass].eq(selected) 49 var $subcontent = this.contentgroup[headerclass].eq(selected) 50 if (typeof optstate == "undefined" || optstate == "expand" && $subcontent.is(":hidden") || optstate == "collapse" && $subcontent.is(":visible")) 51 $targetHeader.trigger("evt_accordion", [false, scrolltoheader]) 52 }, 53 54 ajaxloadcontent: function ($targetHeader, $targetContent, config, callback) { 55 var ajaxinfo = $targetHeader.data('ajaxinfo') 56 57 function handlecontent(content) { //nested function 58 if (content) { //if ajax content has loaded
59 ajaxinfo.cacheddata = content //remember ajax content 60 ajaxinfo.status = "cached" //set ajax status to cached 61 if ($targetContent.queue("fx").length == 0) { //if this content isn't currently expanding or collapsing 62 $targetContent.hide().html(content) //hide loading message, then set sub content's HTML to ajax content 63 ajaxinfo.status = "complete" //set ajax status to complete 64 callback() //execute callback function- expand this sub content 65 } 66 } 67 if (ajaxinfo.status != "complete") { 68 setTimeout(function () { handlecontent(ajaxinfo.cacheddata) }, 100) //call handlecontent() again until ajax content has loaded (ajaxinfo.cacheddata contains data) 69 } 70 } //end nested function 71 72 if (ajaxinfo.status == "none") { //ajax data hasn't been fetched yet 73 $targetContent.html(this.ajaxloadingmsg) 74 $targetContent.slideDown(config.animatespeed) 75 ajaxinfo.status = "loading" //set ajax status to "loading" 76 $.ajax({
77 url: ajaxinfo.url, //path to external menu file 78 error: function (ajaxrequest) { 79 handlecontent('Error fetching content. Server Response: ' + ajaxrequest.responseText) 80 }, 81 success: function (content) { 82 content = (content == "") ? " " : content //if returned content is empty, set it to "space" is content no longer returns false/empty (hasn't loaded yet) 83 handlecontent(content) 84 } 85 }) 86 } 87 else if (ajaxinfo.status == "loading") 88 handlecontent(ajaxinfo.cacheddata) 89 }, 90 91 expandit: function ($targetHeader, $targetContent, config, useractivated, directclick, skipanimation, scrolltoheader) { 92 var ajaxinfo = $targetHeader.data('ajaxinfo') 93 if (ajaxinfo) { //if this content should be fetched via Ajax 94 if (ajaxinfo.status == "none" || ajaxinfo.status == "loading") 95 this.ajaxloadcontent($targetHeader, $targetContent, config, function () { ddaccordion.expandit($targetHeader, $targetContent, config, useractivated, directclick) }) 96 else if (ajaxinfo.status == "cached") { 97 $targetContent.html(ajaxinfo.cacheddata) 98 ajaxinfo.cacheddata = null 99 ajaxinfo.status = "complete" 100 } 101 } 102 this.transformHeader($targetHeader, config, "expand") 103 $targetContent.slideDown(skipanimation ? 0 : config.animatespeed, function () { 104 config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated) 105 if (scrolltoheader) { 106 var sthdelay = (config["collapseprev"]) ? 20 : 0 107 clearTimeout(config.sthtimer) 108 config.sthtimer = setTimeout(function () { ddaccordion.scrollToHeader($targetHeader) }, sthdelay) 109 } 110 if (config.postreveal == "gotourl" && directclick) { //if revealtype is "Go to Header URL upon click", and this is a direct click on the header 111 var targetLink = ($targetHeader.is("a")) ? $targetHeader.get(0) : $targetHeader.find('a:eq(0)').get(0) 112 if (targetLink) //if this header is a link 113 setTimeout(function () { location = targetLink.href }, 200 + (scrolltoheader ? 400 + sthdelay : 0)) //ignore link target, as window.open(targetLink, targetLink.target) doesn't work in FF if popup blocker enabled 114 } 115 }) 116 }, 117 118 scrollToHeader: function ($targetHeader) { 119 ddaccordion.$docbody.stop().animate({ scrollTop: $targetHeader.offset().top }, 400) 120 }, 121 122 collapseit: function ($targetHeader, $targetContent, config, isuseractivated) { 123 this.transformHeader($targetHeader, config, "collapse") 124 $targetContent.slideUp(config.animatespeed, function () { config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), isuseractivated) }) 125 }, 126 127 transformHeader: function ($targetHeader, config, state) { 128 $targetHeader.addClass((state == "expand") ? config.cssclass.expand : config.cssclass.collapse) //alternate btw "expand" and "collapse" CSS classes 129 .removeClass((state == "expand") ? config.cssclass.collapse : config.cssclass.expand) 130 if (config.htmlsetting.location == 'src') { //Change header image (assuming header is an image)? 131 $targetHeader = ($targetHeader.is("img")) ? $targetHeader : $targetHeader.find('img').eq(0) //Set target to either header itself, or first image within header 132 $targetHeader.attr('src', (state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse) //change header image 133 } 134 else if (config.htmlsetting.location == "prefix") //if change "prefix" HTML, locate dynamically added ".accordprefix" span tag and change it 135 $targetHeader.find('.accordprefix').html((state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse) 136 else if (config.htmlsetting.location == "suffix") 137 $targetHeader.find('.accordsuffix').html((state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse) 138 }, 139 140 urlparamselect: function (headerclass) { 141 var result = window.location.search.match(new RegExp(headerclass + "=((\\d+)(,(\\d+))*)", "i")) //check for "?headerclass=2,3,4" in URL 142 if (result != null) 143 result = RegExp.$1.split(',') 144 return result //returns null, [index], or [index1,index2,etc], where index are the desired selected header indices 145 }, 146 147 getCookie: function (Name) { 148 var re = new RegExp(Name + "=[^;]+", "i") //construct RE to search for target name/value pair 149 if (document.cookie.match(re)) //if cookie found 150 return document.cookie.match(re)[0].split("=")[1] //return its value 151 return null 152 }, 153
154 setCookie: function (name, value) { 155 document.cookie = name + "=" + value + "; path=/" 156 }, 157 158 init: function (config) { 159 document.write('<style type="text/css">\n') 160 document.write('.' + config.contentclass + '{display: none}\n') //generate CSS to hide contents 161 document.write('a.hiddenajaxlink{display: none}\n') //CSS class to hide ajax link 162 document.write('<\/style>') 163 jQuery(document).ready(function ($) { 164 ddaccordion.urlparamselect(config.headerclass) 165 var persistedheaders = ddaccordion.getCookie(config.headerclass) 166 ddaccordion.headergroup[config.headerclass] = $('.' + config.headerclass) //remember header group for this accordion 167 ddaccordion.contentgroup[config.headerclass] = $('.' + config.contentclass) //remember content group for this accordion 168 ddaccordion.$docbody = (window.opera) ? (document.compatMode == "CSS1Compat" ? jQuery('html') : jQuery('body')) : jQuery('html,body') 169 var $headers = ddaccordion.headergroup[config.headerclass] 170 var $subcontents = ddaccordion.contentgroup[config.headerclass] 171 config.cssclass = { collapse: config.toggleclass[0], expand: config.toggleclass[1] } //store expand and contract CSS classes as object properties 172 config.revealtype = config.revealtype || "click" 173 config.revealtype = config.revealtype.replace(/mouseover/i, "mouseenter") 174 if (config.revealtype == "clickgo") { 175 config.postreveal = "gotourl" //remember added action 176 config.revealtype = "click" //overwrite revealtype to "click" keyword 177 } 178 if (typeof config.togglehtml == "undefined") 179 config.htmlsetting = { location: "none" } 180 else 181 config.htmlsetting = { location: config.togglehtml[0], collapse: config.togglehtml[1], expand: config.togglehtml[2] } //store HTML settings as object properties 182 config.oninit = (typeof config.oninit == "undefined") ? function () { } : config.oninit //attach custom "oninit" event handler 183 config.onopenclose = (typeof config.onopenclose == "undefined") ? function () { } : config.onopenclose //attach custom "onopenclose" event handler 184 var lastexpanded = {} //object to hold reference to last expanded header and content (jquery objects) 185 var expandedindices = ddaccordion.urlparamselect(config.headerclass) || ((config.persiststate && persistedheaders != null) ? persistedheaders : config.defaultexpanded) 186 if (typeof expandedindices == 'string') //test for string value (exception is config.defaultexpanded, which is an array) 187 expandedindices = expandedindices.replace(/c/ig, '').split(',') //transform string value to an array (ie: "c1,c2,c3" becomes [1,2,3] 188 if (expandedindices.length == 1 && expandedindices[0] == "-1") //check for expandedindices value of [-1], indicating persistence is on and no content expanded 189 expandedindices = [] 190 if (config["collapseprev"] && expandedindices.length > 1) //only allow one content open? 191 expandedindices = [expandedindices.pop()] //return last array element as an array (for sake of jQuery.inArray()) 192 if (config["onemustopen"] && expandedindices.length == 0) //if at least one content should be open at all times and none are, open 1st header 193 expandedindices = [0] 194 $headers.each(function (index) { //loop through all headers 195 var $header = $(this) 196 if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $header.html() != "") { //add a SPAN element to header depending on user setting and if header is a container tag 197 $('<span class="accordprefix"></span>').prependTo(this) 198 $('<span class="accordsuffix"></span>').appendTo(this) 199 } 200 $header.attr('headerindex', index + 'h') //store position of this header relative to its peers 201 $subcontents.eq(index).attr('contentindex', index + 'c') //store position of this content relative to its peers 202 var $subcontent = $subcontents.eq(index) 203 var $hiddenajaxlink = $subcontent.find('a.hiddenajaxlink:eq(0)') //see if this content should be loaded via ajax 204 if ($hiddenajaxlink.length == 1) {
205 $header.data('ajaxinfo', { url: $hiddenajaxlink.attr('href'), cacheddata: null, status: 'none' }) //store info about this ajax content inside header 206 } 207 var needle = (typeof expandedindices[0] == "number") ? index : index + '' //check for data type within expandedindices array- index should match that type 208 if (jQuery.inArray(needle, expandedindices) != -1) { //check for headers that should be expanded automatically (convert index to string first) 209 ddaccordion.expandit($header, $subcontent, config, false, false, !config.animatedefault) //3rd last param sets 'isuseractivated' parameter, 2nd last sets isdirectclick, last sets skipanimation param 210 lastexpanded = { $header: $header, $content: $subcontent } 211 } //end check 212 else { 213 $subcontent.hide() 214 config.onopenclose($header.get(0), parseInt($header.attr('headerindex')), $subcontent.css('display'), false) //Last Boolean value sets 'isuseractivated' parameter 215 ddaccordion.transformHeader($header, config, "collapse") 216 } 217 }) 218 //if (config["scrolltoheader"] && lastexpanded.$header) 219 //ddaccordion.scrollToHeader(lastexpanded.$header) 220 $headers.bind("evt_accordion", function (e, isdirectclick, scrolltoheader) { //assign CUSTOM event handler that expands/ contacts a header 221 var $subcontent = $subcontents.eq(parseInt($(this).attr('headerindex'))) //get subcontent that should be expanded/collapsed 222 if ($subcontent.css('display') == "none") { 223 ddaccordion.expandit($(this), $subcontent, config, true, isdirectclick, false, scrolltoheader) //2nd last param sets 'isuseractivated' parameter 224 if (config["collapseprev"] && lastexpanded.$header && $(this).get(0) != lastexpanded.$header.get(0)) { //collapse previous content? 225 ddaccordion.collapseit(lastexpanded.$header, lastexpanded.$content, config, true) //Last Boolean value sets 'isuseractivated' parameter 226 } 227 lastexpanded = { $header: $(this), $content: $subcontent } 228 } 229 else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$header && $(this).get(0) != lastexpanded.$header.get(0)) { 230 ddaccordion.collapseit($(this), $subcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter 231 } 232 }) 233 $headers.bind(config.revealtype, function () { 234 if (config.revealtype == "mouseenter") { 235 clearTimeout(config.revealdelay) 236 var headerindex = parseInt($(this).attr("headerindex")) 237 config.revealdelay = setTimeout(function () { ddaccordion.expandone(config["headerclass"], headerindex, config.scrolltoheader) }, config.mouseoverdelay || 0) 238 } 239 else { 240 $(this).trigger("evt_accordion", [true, config.scrolltoheader]) //last parameter indicates this is a direct click on the header 241 return false //cancel default click behavior 242 } 243 }) 244 $headers.bind("mouseleave", function () { 245 clearTimeout(config.revealdelay) 246 }) 247 config.oninit($headers.get(), expandedindices) 248 $(window).bind('unload', function () { //clean up and persist on page unload 249 $headers.unbind() 250 var expandedindices = [] 251 $subcontents.filter(':visible').each(function (index) { //get indices of expanded headers 252 expandedindices.push($(this).attr('contentindex')) 253 }) 254 if (config.persiststate == true && $headers.length > 0) { //persist state? 255 expandedindices = (expandedindices.length == 0) ? '-1c' : expandedindices //No contents expanded, indicate that with dummy '-1c' value? 256 ddaccordion.setCookie(config.headerclass, expandedindices) 257 } 258 }) 259 }) 260 } 261} 262 263//preload any images defined inside ajaxloadingmsg variable 264ddaccordion.preloadimages(jQuery(ddaccordion.ajaxloadingmsg).filter('img')) 265 266ddaccordion.init({ 267 headerclass: "expandable1", //Shared CSS class name of headers group that are expandable 268 contentclass: "categoryitems1", //Shared CSS class name of contents group 269 revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover" 270 mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover 271 collapseprev: true, //Collapse previous content (so only one open at any time)? true/false 272 defaultexpanded: [], //index of content(s) open by default [index1, index2, etc]. [] denotes no content 273 onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed) 274 animatedefault: false, //Should contents open by default be animated into view? 275 persiststate: true, //persist state of opened contents within browser session? 276 toggleclass: ["", "openheader"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"] 277 togglehtml: ["prefix", "<a href='#' onClick='ddaccordion.collapseone('expandable2',0);ddaccordion.collapseone('expandable3',0);return false'><span class='closedarrow'></span> </a>", "<a href='#' onClick='ddaccordion.collapseone('expandable2',0);ddaccordion.collapseone('expandable3',0);return false'>
277<span class='openarrow'></span> </a>"], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs) 278 animatespeed: "normal", //speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow" 279 oninit:function(headers, expandedindices){ //custom code to run when headers have initalized 280 //do nothing 281 }, 282 onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed 283 //do nothing 284 } 285}) 286 287ddaccordion.init({ 288 headerclass: "expandable2", //Shared CSS class name of headers group that are expandable 289 contentclass: "categoryitems2", //Shared CSS class name of contents group 290 revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover" 291 mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover 292 collapseprev: true, //Collapse previous content (so only one open at any time)? true/false 293 defaultexpanded: [], //index of content(s) open by default [index1, index2, etc]. [] denotes no content 294 onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed) 295 animatedefault: false, //Should contents open by default be animated into view? 296 persiststate: true, //persist state of opened contents within browser session? 297 toggleclass: ["", "openheader"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"] 298 togglehtml: ["prefix", "<a href='#' onClick='ddaccordion.collapseone('expandable1',0);ddaccordion.collapseone('expandable3',0);return false'><span class='closedarrow'></span> </a>", "<a href='#' onClick='ddaccordion.collapseone('expandable1',0);ddaccordion.collapseone('expandable3',0);return false'><span class='openarrow'></span> </a>"], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs) 299 animatespeed: "normal", //speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow" 300 oninit:function(headers, expandedindices){ //custom code to run when headers have initalized 301 //do nothing 302 }, 303 onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed 304 //do nothing 305 } 306}) 307 308ddaccordion.init({ 309 headerclass: "expandable3", //Shared CSS class name of headers group that are expandable 310 contentclass: "categoryitems3", //Shared CSS class name of contents group 311 revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover" 312 mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover 313 collapseprev: true, //Collapse previous content (so only one open at any time)? true/false 314 defaultexpanded: [], //index of content(s) open by default [index1, index2, etc]. [] denotes no content 315 onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed) 316 animatedefault: false, //Should contents open by default be animated into view? 317 persiststate: true, //persist state of opened contents within browser session? 318 toggleclass: ["", "openheader"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"] 319 togglehtml: ["prefix", "<a href='#' onClick='ddaccordion.collapseone('expandable1',0);ddaccordion.collapseone('expandable2',0);;return false'><span class='closedarrow'></span> </a>", "<a href='#' onClick='ddaccordion.collapseone('expandable1',0);ddaccordion.collapseone('expandable2',0);return false'><span class='openarrow'></span> </a>"], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs) 320 animatespeed: "normal", //speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow" 321 oninit:function(headers, expandedindices){ //custom code to run when headers have initalized 322 //do nothing 323 }, 324 onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed 325 //do nothing 326 } 327}) 328 329ddaccordion.init({ 330 headerclass: "subexpandable", //Shared CSS class name of headers group that are expandable 331 contentclass: "subcategoryitems", //Shared CSS class name of contents group 332 revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover" 333 mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover 334 collapseprev: true, //Collapse previous content (so only one open at any time)? true/false 335 defaultexpanded: [], //index of content(s) open by default [index1, index2, etc]. [] denotes no content 336 onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed) 337 animatedefault: false, //Should contents open by default be animated into view? 338 persiststate: true, //persist state of opened contents within browser session? 339 toggleclass: ["", "openheader"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"] 340 togglehtml: ["prefix", "<span class='closedarrow'></span>
340 ", "<span class='openarrow'></span> "], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs) 341 animatespeed: "normal", //speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow" 342 oninit:function(headers, expandedindices){ //custom code to run when headers have initalized 343 //do nothing 344 }, 345 onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed 346 //do nothing 347 } 348}) 349 350function ondemand() // Opens the "By Format -> On Demand" subsection 351{ 352 ddaccordion.collapseall('expandable1'); ddaccordion.collapseall('expandable3'); ddaccordion.expandone('expandable2', 0); ddaccordion.expandone('subexpandable', 17); ddaccordion.collapseone('subexpandable', 18); 353} 354 355function instructor() // Opens the "By Format -> Instructor-Led" subsection 356{ 357 ddaccordion.collapseall('expandable1'); ddaccordion.collapseall('expandable3');
357 ddaccordion.expandone('expandable2', 0); ddaccordion.expandone('subexpandable', 18); ddaccordion.collapseone('subexpandable', 17); 358} 359 360function newcourses() // Opens the "By Topic -> New" subsection 361{ 362 ddaccordion.collapseall('subexpandable'); ddaccordion.collapseall('expandable2'); ddaccordion.collapseall('expandable3'); ddaccordion.expandone('expandable1', 0); ddaccordion.expandone('subexpandable', 0); 363} 364 365function allcourses() // Opens the "All Courses" section 366{ 367 ddaccordion.collapseall('subexpandable'); ddaccordion.collapseall('expandable1'); ddaccordion.collapseall('expandable2'); ddaccordion.expandone('expandable3', 0); 368} 369 370function topics() // Opens the "By Topic" section 371{ 372 ddaccordion.collapseall('subexpandable'); ddaccordion.collapseall('expandable2'); ddaccordion.collapseall('expandable3'); ddaccordion.expandone('expandable1', 0); 373} 374 375function CloseAll() { 376 ddaccordion.collapseall('subexpandable'); ddaccordion.collapseall('expandable1'); ddaccordion.collapseall('expandable2'); ddaccordion.collapseall('expandable3'); 377} 378 379// Expand & contract specific sections via URL query link 380// Parse URL Queries 381function url_query(query) { 382 query = query.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]"); 383 var expr = "[\\?&]" + query + "=([^&#]*)"; 384 var regex = new RegExp(expr); 385 var results = regex.exec(window.location.href); 386 if (results !== null) { 387 return results[1]; 388 } else { 389 return false; 390 } 391} 392 393function expand() { 394 var url_param1 = url_query('load1'); 395 var url_param2 = url_query('load2'); 396 var url_param3 = url_query('load3'); 397 var url_param4 = url_query('load4'); 398 var url_param5 = url_query('load5'); 399 var url_param6 = url_query('utm_campaign'); 400 if (url_param1) { 401 newcourses() // Opens the "By Topic -> New" subsection 402 } 403 if (url_param2) { 404 allcourses() // Opens the "All Courses" section 405 } 406 if (url_param3) { 407 topics() // Opens the "By Topic" section 408 } 409 if (url_param4) { 410 ondemand() // Opens the "By Format -> On Demand" subsection 411 } 412 if (url_param5) { 413 instructor() // Opens the "By Format -> Instructor-Led" subsection 414 } 415 if (url_param6) { 416 ondemand() // Opens the "By Format -> On Demand" subsection 417 } else { 418 return false; 419 } 420} 421 422// Run URL query link on page load 423//window.onload = expand;�
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